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Published July 13, 2010 | Published
Book Section - Chapter Open

CEA Bolometer Arrays: the First Year in Space

Abstract

The CEA/LETI and CEA/SAp started the development of far-infrared filled bolometer arrays for space applications over a decade ago. The unique design of these detectors makes possible the assembling of large focal planes comprising thousands of bolometers running at 300 mK with very low power dissipation. Ten arrays of 16x16 pixels were thoroughly tested on the ground, and integrated in the Herschel/PACS instrument before launch in May 2009. These detectors have been successfully commissioned and are now operating in their nominal environment at the second Lagrangian point of the Earth-Sun system. In this paper we briefly explain the functioning of CEA bolometer arrays, and we present the properties of the detectors focusing on their noise characteristics, the effect of cosmic rays on the signal, the repeatability of the measurements, and the stability of the system.

Additional Information

© 2010 SPIE. The authors would like to thank the CEA-Saclay/SAp Bolometer Group and the Herschel/PACS ICC for a fantastic instrument and their help in obtaining and interpreting the data presented in this paper.

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August 22, 2023
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January 13, 2024